/* Se empieza con un reset simple */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
/* Se hace los estilos de las etiquetas principales */
body {
  font-family: 'Poppins', Arial, sans-serif;
  background: #f6f9fb;
  color: #23272f;
  line-height: 1.5;
}

header {
  background: #1f2937;
  color: #fff;
  padding: 24px 0 12px 0;
  text-align: center;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px #c1d4fa22;
}

nav ul {
  display: flex;
  justify-content: center;
  gap: 32px;
  list-style: none;
  margin-bottom: 10px;
}

nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  font-size: 1.1em;
  transition: color 0.3s;
}

nav a:hover {
  color: #f97316;
}

h1 {
  font-size: 2.2em;
  font-weight: 700;
}

main {
  width: 95%;
  max-width: 980px;
  margin: 0 auto;
}

/* Se hace los estilos de las clases */
.me {
  margin: 32px 0;
}

.presentation_flex {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}

.presentation_flex img {
  border-radius: 250px;
  box-shadow: 0 2px 12px #2061e722;
  max-width: 140px;
  -webkit-border-radius: 250px;
  -moz-border-radius: 250px;
  -ms-border-radius: 250px;
  -o-border-radius: 250px;
}

.skills_list {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  padding: 12px 0 24px 0;
}

.skills_list li {
  background: #e0e7ef;
  border-radius: 8px;
  padding: 8px 18px;
  font-weight: 500;
  box-shadow: 0 1px 4px #2061e712;
  margin-bottom: 8px;
  transition: background 0.3s;
}
.skills_list li:hover {
  background: #c7d2fe;
}

.portfolio_list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 24px 0;
}

.proyect {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 1px 6px #e2e8f022;
  transition: transform 0.25s, box-shadow 0.25s;
  text-align: center;
}

.proyect:hover {
  transform: translateY(-6px) scale(1.03);
  box-shadow: 0 4px 16px #2061e722;
}
.proyect img {
  max-width: 140px;
  border-radius: 10px;
  margin-bottom: 12px;
}

.btn {
  background: #2563eb;
  color: #fff;
  padding: 8px 22px;
  border-radius: 7px;
  text-decoration: none;
  font-weight: 500;
  box-shadow: 0 1px 4px #2061e722;
  transition: background 0.2s, transform 0.2s;
  margin-top: 10px;
  display: inline-block;
}
.btn:hover {
  background: #f97316;
  transform: translateY(-3px) scale(1.06);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  margin: 24px 0;
  border-radius: 10px;
  box-shadow: 0 1px 6px #e2e8f022;
}

th, td {
  padding: 12px 8px;
  text-align: center;
  border-bottom: 1px solid #e0e7ef;
}
th {
  background: #dbeafe;
}
tr:last-child td {
  border-bottom: none;
}

form {
  background: #fff;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
form input, form textarea {
  border: 1px solid #e0e7ef;
  border-radius: 6px;
  padding: 8px;
  font-size: 1em;
  font-family: inherit;
  transition: border-color 0.2s;
}
form input:focus, form textarea:focus {
  border-color: #2563eb;
  outline: none;
}
form button {
  margin-top: 8px;
}

footer {
  background: #1f2937;
  color: #dbeafe;
  text-align: center;
  padding: 20px 0;
  margin-top: 48px;
  font-size: 0.98em;
}
footer a {
  color: #f97316;
  text-decoration: underline;
  transition: color 0.3s;
}
footer a:hover {
  color: #38bdf8;
}

.contact_1 {
    display: flex;
    justify-content: center;
}

/* Responsive */
@media (max-width: 900px) {
  .portfolio_list {
    grid-template-columns: 1fr;
  }
  .presentation_flex {
    flex-direction: column;
    gap: 18px;
  }
}

@media (max-width: 600px) {
  nav ul {
    flex-direction: row;
    gap: 30px;
  }
  main {
    width: 98%;
  }
  form {
    padding: 10px 5px;
  }
}